Home / 869,196,005.10-1,303,794,007.65-287,020,104.30

Finding the Fourth Proportional to 869,196,005.10, 1,303,794,007.65 and 287,020,104.30

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Solution

The fourth proportional to 869,196,005.10, 1,303,794,007.65 and 287,020,104.30 is: 430,530,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,196,005.10 : 1,303,794,007.65 = 287,020,104.30 : x
  2. Step 2: Convert to fraction form
    869,196,005.10/1,303,794,007.65 = 287,020,104.30/x
  3. Step 3: Cross multiply
    869,196,005.10x = 1,303,794,007.65 × 287,020,104.30
  4. Step 4: Simplify right side
    869,196,005.10x = 374,215,092,061,418,048
  5. Step 5: Solve for x
    x = 374,215,092,061,418,048/869,196,005.10
  6. Step 6: Final answer
    x = 430,530,156.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.